How a value is built
Resivise never shows a single black-box number. Up to seven independent signals — a live AVM, adjusted comparable listings, your home's last sale indexed to the market, a validated web-researched appraisal, published portal estimates, parcel records and an AI appraisal — are weighted by reliability, outliers are capped, and the blend is shown with every signal, its weight and its track record so you can inspect it and switch any signal off.
Accuracy, measured honestly
Every report with a recorded sale is back-tested: each signal's value is compared with the last sale carried forward at the local market's yearly rate. The trust score blends how often a signal lands within 10% with its typical miss. Scores are recomputed live from all reports and get more reliable as reports accumulate.
Reports with a recorded sale
2
Signals tracked
5
Best signal so far
Published web estimates · 53
| Signal | Within 10% | Typical miss | Leans | Trust |
|---|---|---|---|---|
| Published web estimates (n=2) | 50% | 10.9% | high 10.9% | 53 |
| Web-researched appraisal (n=2) | 50% | 27.9% | high 27.9% | 30 |
| MLS-backed AVM (n=2) | 0% | 20.6% | low 2.1% | 7 |
| AI appraisal (n=2) | 0% | 20.6% | low 2.1% | 7 |
| Comparable listings, adjusted (n=2) | 0% | 23.7% | low 1.1% | 2 |
Small sample so far (2 reports) — treat these as early indicators. Trust-weighting of the blend switches on automatically at 5.
Where the data comes from
RentCast
Live MLS-backed AVM, comparable listings, county property records (sales, taxes, HOA), rent estimates, ZIP price & inventory history, active listings for neighborhood searches.
Licence: Licensed for commercial redistribution to end users; no attribution required. Freshness: Cached up to 20 h per address; market data 30 d.
County records via RentCast
Recorded sales, assessments, tax history. Users can correct facts, and corrections are treated as authoritative.
Licence: Public records. Freshness: Per address, refreshed on demand.
Perplexity (Sonar / Sonar Pro)
Web-researched appraisal from recently closed sales with citations; market temperature; published Zillow, Redfin and Realtor.com estimates; local news and facts.
Licence: Retrieved from public web pages and always shown with its citation. Portal estimates are context signals, never the headline number. Freshness: Appraisal cached 20 h; market pulse 24 h per ZIP.
PropData (RapidAPI)
Parcel-level AVM when a parcel match exists; ZIP context: Zillow ZHVI typical home value, HUD rent benchmark, Census income & demographics.
Licence: Marketplace terms; ZHVI, HUD and Census are open data. Freshness: 20 h per address.
Claude Sonnet 4.6 (Anthropic)
Reasoned appraisal, value drivers, buyer/seller strategy, offer letters and the chat assistant — always fed with the facts above and your corrections.
Licence: API terms; outputs belong to you. Freshness: Generated per analysis.
Google Maps Platform
Address autocomplete, schools and commute times.
Licence: Displayed with Google attribution. Freshness: Not cached beyond 30 days.
Resivise is an independent second opinion. It is not an appraisal for lending purposes, is not affiliated with Zillow, Redfin, Realtor.com or any MLS, and does not sell your information to agents. Zillow, Zestimate, Redfin and Realtor.com are trademarks of their respective owners.